Analysis of the feasibility of remote access to industrial wireless networks by means of VPN

Many types of industries require their plants to be geographically located at distant points from the headquarters that control their administrative operations. For example, basic industries such as mining, oil and gas and energy, which transform raw materials for use in other processes, usually have their facilities close to primary sources, imposing the need to implement a remote monitoring strategy. This work presents a remote interconnection solution between a field device of a wirelessHART network and a remote operator collecting related latency data, at the time of its measurement, in a secure and reliable way through the use of a virtual private network on the Internet. Measurements were performed at regional and international locations and statistical comparisons of the results were performed.